20474-91

View detailed technical data, stock status, and sourcing information for: 20474-91
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-255-0103

Item Name Code

01860

Assigment Date

05/14/1987 (39 years ago)

A nut internally threaded from one end, and completely enclosed on the opposite end. The outer periphery parallel to the threaded axis may be square, cylindrical, hexagonal, octagonal, dodecagonal or the like and taper to a cone or dome shape on the closed end. An integral feature is incorporated for locking on the threads of a mating memeber. Excludes:nut (1), stamped.

0.259 inches minimum and 0.263 inches maximum pilot diameter, 0.203 inches nominal nut height, 2b thread class, right-hand thread direction, clinch nut style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2b
Thread Direction: right-hand
Pilot Diameter: 0.259 inches minimum and 0.263 inches maximum
Nut Style: clinch
Nut Height: 0.203 inches nominal
Width Across Flats: 0.312 inches nominal
Thread Series: unc
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.164 inches
Part Name Assigned By Controlling Agency: navy special project
Material: steel comp 303 overall
Material Document And Classification: 66 fed std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: mil-f-14072,e300 mil spec single treatment response overall

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
20474-91	Clinch Plain Nut
950265-91	Clinch Plain Nut

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5310-01-255-0103?

The FSCG of the NSN 5310-01-255-0103 is 5310

Does the NSN 5310-01-255-0103 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-255-0103 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5310-01-255-0103 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-255-0103 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5310-01-255-0103 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Thu, May 14, 1987